Boost Logic SS304 4" Cat-Back Exhaust System Constructed of Polished SS304, this is the lightest 4" Cat-Back exhaust system available for the MKIV Toyota Supra. With all the mounting hardware, this exhaust weighs in at very light 21.5lbs We use our own polished SS304 Boost Logic muffler which has a very deep and throaty tone. Listen to our Exhaust System! Some Customer running our exhaust system:
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